US Water Systems Regeneration Not Initiating

Softener does not regenerate at all; water gradually becomes hard

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Incorrect time or hardness settings, Meter not registering flow, Regeneration mode set to OFF, Control board failure

How to Fix / Troubleshooting

Safety: No plumbing work is required for basic checks. Unplug before removing the control cover.

  • Check display settings: Verify the current time, hardness, capacity, and regeneration mode (metered vs. time clock) are set correctly on the US Water Systems controller.
  • Confirm meter operation: Open a faucet and check that the display shows flow or counts down remaining capacity. If not, troubleshoot the flow meter (see NO FLOW/ERR3).
  • Force a manual regeneration: Use the REGEN or MANUAL button to start a cycle. If the valve does not move at all, suspect a motor or board issue.
  • Inspect wiring and motor: Remove the cover and ensure the motor harness is connected. If the motor does not run during a manual regen and has proper voltage, replace the drive motor. If no voltage is present, replace the control board.
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Repair Difficulty

Medium 3/5

Required Part

Electronic Control Board
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